Wenquan Wei

Follow

Person

San Francisco, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Jam detector system for coin escrow device
- Patent number 6,182,811
- Issue date Feb 6, 2001
- Tatung Telecom
- Wenquan Wei
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin receiving mechanism having foreign object release device
- Patent number 5,954,182
- Issue date Sep 21, 1999
- Tatung Telecom Corporation
- Wenquan Wei
- G07 - CHECKING-DEVICES